/**
 * Copyright (c) 2011 ~ 2013 Deepin, Inc.
 *               2011 ~ 2013 jouyouyun
 *
 * Author:      jouyouyun <jouyouwen717@gmail.com>
 * Maintainer:  jouyouyun <jouyouwen717@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 **/

// 测试闭包

package main

import "fmt"

var (
	testId = func() func() int {
		id := 0
		return func() int {
			id += 1
			return id
		}
	}()
	genId, destroyId = func() (func() int, func()) {
		count := 0
		return func() int {
				tmp := count
				count++
				return tmp
			}, func() {
				count = 0
			}
	}()
)

func main() {
	for i := 0; i < 10; i++ {
		if i == 5 {
			fmt.Println("Reser count to 0")
			destroyId()
		}
		fmt.Printf("i -id: %d - %d\n", i, genId())
                fmt.Printf("i - testId: %d - %d\n", i, testId())
	}
}
